Gun-sight



33-243. OR 1 336 165 SR C. SKOPAL.

GUN SIGHT.

' nmcmou HLED Aua.3, ms. 1,336, 1 65. tented Apr. 6, 1920.

/a&/J-' moan UNITED STATES PATENT OFFICE.

I CARL SKOPAL, OF LETHBRIDGE, ALBERTA, CANADA.

GUN-SIGHT.

Specification of Letters Patent.

Patented Apr. 6, 1920.

Application filed August 3, 1918. Serial No. 248,205.

To all whom it may concern:

Be it known that I, CARL SKOPAL, citizen of Bohemia, residing atLethbridge, in the Province of Alberta and Dominion of Canada, haveinvented new and useful Improvements in Gun-Sights, described andclaimed in my application filed August 3, 1918, Ser. No. 248,205.

The object of the invention is to provide a gun sight and particularly afore sight for rifles, shot guns, machine guns and the like which shallnot be open to the objection of becoming polished or discolored byreason of use or the heat of discharge-of the piece, it being a wellrecognized fact that the most effective and satisfactory sight, foraccuracy in firing, is of a dark color, preferably black and of a dullfinish, so as to be nonrefiective, and hence not such as to distract 0rdistort the vision of the marksman.

In carrying out this object, the invention consists of the constructionand combination hereinafter set forth, it being understood that changesin form and proportion may be resorted to without departing from thespirit of the disclosure.

In the drawing:

Figure 1 represents in side elevation a gun sight applied in theoperative position to a barrel.

Fig. 2 is a rear view of the same as seen by the marksman.

Fig. 3 is a detail view ofthe sight detached.

Essentially, the invention consists in providing a fore sight ofrefractory material having a color, preferably black, which is notaffected by heat or by frictional contact with face to the eye of theobserver, to avoid that refraction which usually results in causing themarksman to over-fire the object. It has been found that dull ebony ormetal which has been provided with a sufficiently durable surfacecoating of a dull black color is effective in this connection, and theblade 10 of the sight should be tapered upwardly and forwardly from therear end to present a gradually reduced surface toward the apex 11. Theblade may as in the ordinary practice be held in a base plate 12 fittedin the usual transverse undercut seat 13 in the barrel 14.

It has been found by actual test that the accuracy of aim is improvedapproximately 50% by providing a fore sight which presents a dull blacksurface to the eye of the marksman, as distinguished from one which haseven a slight polish or reflective surface, for the reason that theeffect of the reflection is to give the impression to the eye of themarksman that the apex of the foresight is lower than it actually is,and therefore induces him to elevate the gun more than is necessary tosecure an accurate trajectory.

These disadvantages are overcome by the complete elimination ofreflection.

What is claimed is:

The combination with a gun barrel, of a base plate seated thereonadjacent the muzzle end of the barrel, and a fore sight consisting of ablade tapering upwardly and rearwardly from the front end to present agradually reduced surface at the rear end, the blade being carried bythe base plate and provided with a durable surface coating of a dullblack color as and for the purpose hereother objects, and which is notsusceptible of Women? polish or of becoming shiny in use, and whichtherefore presents a uniform or dead sur- In testimony whereof I aflixmy signature.

CARL SKOPAL.

